Liquid-fuel-burning incandescent lamp.



PATENTED FEB. 21, 1905.

J. DANISGHEVSKI. LIQUID FUEL BURNING INGANDESCENT LAMP.

APPLICATION FILED OUT. 25, 1902.

2 SHEETS-SHEIIT l.

PATENTED FEB. 21, 1905.

J. DANISGHBVSKI. LIQUID FUEL BURNING INGANDESOENT LAMP.

APPLICATION FILED 00'1. 26, 1Q02.

2 SHEETS-SHEET 2.

Patented February 21, 1905.

PATENT OFFICE.

JOSEPH DANTSCHEVSKI, OF ST. PETERSBURG, RUSSIA.

LIQUID-FUEL-BURNING INCANDESCENT LAMP.

SPECIFICATION folming part of Letters Patent N 0. 783,248, datedFebruary 21, 1905. Application filed 0mm 25,1902. Serial NO. 128,818.

To all whom it flea/y concern:

Be it known that I, J osErH DANISOHEVSKI, a subject of the Emperor ofRussia, residing at St. Petersburg, Russia, have invented certain newand useful Improvements in Liquid- Fuel-Burning Incandescent Lamps, ofwhich the following is a specification.

invention relates to liquid-fuel-burning incandescent lamps, and isdesigned to simplify, cheapen, and render more efiicient burners of theclass to which it belongs.

The invention consists of a reservoir for holding the liquid fuel, meansfor filling the same, mechanism for forcing the liquid from thereservoir atan even and continuous pressure to the burner, and means forreturning the liquid to the reservoir.

In the accompanying drawings, Figure 1 is an elevation, partly insection, of a streetlamp embodying my invention. Fig. 1 is a verticalsection of the base portion of alamppost having a weight suspendedtherein; Fig. 2, an enlarged detail side elevation, partly in section,of the liquid-reservoir; Fig. 3, a top plan view of the reservoir andsupply-tank; Fig. 4, an elevation of a modification, showing myimprovement applied to a portable lamp.

As an example of the adaptability of my lamp, I have shown it in Fig. 1mounted on an ordinary street-lamp post A, having brackets A at the top'which support both the liquid-fuel reservoir and the lantern portion.The reservoir comprises a compressible re' ceptacle a, preferably madeof a flexible material in the form of a bellows and coated with anycompound which will resist the passage of oil. This receptacle (4 ismounted on and connected to a base-plate a, bolted to the brackets A. Tothe top of the reservoir is connected a plate a movable toward and fromthe base-plate a between guide-pieces b, bolted on two sides of thebase-plate at;

These guide-pieces are connected at their tops by a cross-plate a,carrying a standard (Z, centrally mounted thereon. A shaft 6 isjournaled in a bearing-piece 0, formed on one of the guide-pieces or onone end of the crossplate 0 and in bearings formed in two arms (Z of thestandard (Z. A pinion 0', mounted on I the shaft 0 between the two armsof the standard, engages a rack-bar a centrally connected to the topplate a and projecting up through the standard. A pawl f, preferablyprovided with forked arms which straddle the pinion e and by means ofwhich it is loosely journaled on the shaft e, is adapted to be throwninto and out of engagement with the rack-bar. For this purpose a leverg, loosely mounted on the shaft, is connected to the pawl by means of acoiled spring g.

In the top plate a is formed an opening a, into which latter is inserteda tube la, and connected to this tube, by means of a couplingnut h, is aflexible hose if, leading to a supply-tank X, as shown in Fig. 3.

A vaporizer V is preferably mounted above the reservoir, as shown inFig. 1, and is supplied with liquid therefrom by means of a pipe ofwhich enters the reservoir through the base-plate a. An incandescentburner Y is preferably situated below the vaporizer and is connectedtherewith by a pipe 1 The liquid fuel contained in the reservoir isforced through the pipe 0; to the vaporizer by means of the collapsingof the reservoir. This is accomplished by means of a weight P, which, asshown in Fig. 1, is suspended in the post A and connected to the topplate a by means of a cord or, if desired, a weight P may be mounteddirectly upon the top plate (4 as shown in Fig. 2.

A coiled pipe W surrounds the reservoir and is in communication at oneend with the upper part of the reservoir, while the other endcommunicates with the supply-pipe 1/ near where it enters the bottom ofthe reservoir, as shown in Fig. 2.

The operation of the device is as follows: When the reservoir isempty,and consequently collapsed, it is filled in the following manner:The tube it is inserted in the aperture 0* of the top plate and iscoupled, by means of the nut it, with the flexible hose if, which latteris placed in the storage-tank X. The shaft 0 is then rotated by means ofthe handle 70, and

causing the oil to flow from the tank into the reservoir, and after thereservoir has been filled the pawl fis thrown into engagement with therack to prevent the weight P from descending.

The pipe If is then disconnected and the aperture in the reservoirclosed by means of a nut or any suitable stopping device. When it isdesired to light the lamp, the vaporizer is heated, and the flow of oilthereto is started by simply releasing the pawl from engagement with therack by means of the lever g, and a constant flow is insured by thepressure of the weight upon the reservoir. To extinguish the lamp, itwill be suificient to raise the weight P by turning the handle is,releasing the liquid fuel from pressure and at the same time creating avacuum in the reservoir above the fuel. The lamp is extinguished at oncewithout smoke or exhalations, and toprevent evaporation of the liquidfuel which would ordinarily remain in the pipe u up to the liquid-levelin the reservoir the cock o is turned to shut off the supply from thereservoir, and the liquid left in the pipe is drawn back into thereservoir through the pipe w by means of the vacuum in the top of thereservoir.

Having thus described my invention, what I-elaim as new therein, anddesire to secure by plate, a pinion in engagement with said rack,

means for rotating the pinion, and means for locking the rack-bar,substantially as described.

2. In a liquid-fuel incandescent lamp, the

combination of a flexible reservoir, a stationary support therefor, aplate connected to the top of the reservoir, a weight supported by thetop plate, guides for the top plate mounted on the base-plate, a plateconnecting the guides, a standard mounted on the connecting-plate, arack-bar connected to the top plate and projecting through the standard,a shaft having bearings in the standard, a pinion on the shaft inengagement with the rack-bar, a pawl adapted to engage said rack-bar,and means for operating the pawl, substantially as and for the tureformed thereinfmeans for compressing the reservoir and means forexpanding the same, of a supply-tank, and a feed-pipe secured in theaperture and communicating with the tank, whereby when the reservoir isexpanded fuel will flow from the tank into the reservoir, substantiallyas and for the purpose specified.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JOSEPH DANISCHEVSKI. Witnesses:

N. TSOHEKALOFF, H. LOVIXGUINE.

